/* roulang page: index */
:root {
      --ink: #282522;
      --muted: #746d68;
      --paper: #f2efed;
      --surface: #fbf9f7;
      --surface-deep: #e9e3e0;
      --line: #d9d1cd;
      --plum: #562d42;
      --plum-dark: #3d2030;
      --rose: #b76b75;
      --rose-pale: #f0dfe0;
      --sage: #65766d;
      --sage-pale: #e4e9e4;
      --warning: #855f44;
      --radius: 6px;
      --shadow: 0 8px 24px rgba(42, 31, 34, .07);
      --container: 1180px;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 86px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 15px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    a:hover { color: var(--plum); }
    img { display: block; max-width: 100%; }
    button, input, select, textarea { font: inherit; }
    button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
    :focus-visible { outline: 3px solid rgba(183, 107, 117, .55); outline-offset: 3px; }
    .container { max-width: var(--container); }
    .eyebrow {
      display: flex;
      align-items: center;
      gap: 10px;
      margin: 0 0 12px;
      color: var(--plum);
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0;
      text-transform: uppercase;
    }
    .eyebrow::before { width: 22px; height: 2px; background: var(--rose); content: ""; }
    .section-heading { max-width: 740px; margin-bottom: 30px; }
    .section-heading h2 {
      margin: 0 0 10px;
      font-size: 29px;
      font-weight: 750;
      line-height: 1.3;
      letter-spacing: 0;
    }
    .section-heading p { margin: 0; color: var(--muted); line-height: 1.8; }
    .section-band { padding: 66px 0; border-top: 1px solid rgba(86, 45, 66, .1); }
    .section-band--light { background: var(--surface); }
    .section-band--deep { color: #f8f2f1; background: var(--plum-dark); }
    .section-band--deep .eyebrow { color: #efc3c6; }
    .section-band--deep .section-heading p { color: #d0c0c4; }

    .site-header {
      position: sticky;
      z-index: 1030;
      top: 0;
      background: rgba(251, 249, 247, .97);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 3px 14px rgba(42, 31, 34, .04);
    }
    .brand-row { min-height: 62px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      color: var(--plum-dark);
      font-size: 17px;
      font-weight: 800;
      line-height: 1.25;
    }
    .brand-mark {
      width: 32px;
      height: 32px;
      display: grid;
      flex: 0 0 32px;
      place-items: center;
      color: #fff;
      background: var(--plum);
      border-radius: 4px;
      font-size: 15px;
    }
    .brand-note { color: var(--muted); font-size: 12px; white-space: nowrap; }
    .nav-row { min-height: 48px; border-top: 1px solid #ebe5e2; }
    .nav-row .navbar { min-height: 48px; padding: 0; }
    .nav-links { display: flex; align-items: center; gap: 7px; }
    .nav-links .nav-link {
      position: relative;
      padding: 12px 14px;
      color: #514a47;
      font-size: 13px;
      font-weight: 650;
      transition: color .18s ease, background .18s ease;
    }
    .nav-links .nav-link:hover, .nav-links .nav-link.active { color: var(--plum); background: #f3e9e9; }
    .nav-links .nav-link.active::after {
      position: absolute;
      right: 14px;
      bottom: 0;
      left: 14px;
      height: 2px;
      background: var(--rose);
      content: "";
    }
    .nav-tools { display: flex; align-items: center; gap: 10px; }
    .trend-link { color: var(--muted); font-size: 12px; }
    .trend-link:hover { color: var(--plum); }
    .icon-button {
      width: 40px;
      height: 40px;
      display: inline-grid;
      place-items: center;
      color: var(--plum);
      background: transparent;
      border: 1px solid var(--line);
      border-radius: 4px;
      transition: background .18s ease, border-color .18s ease;
    }
    .icon-button:hover { background: var(--rose-pale); border-color: var(--rose); }
    .navbar-toggler { padding: 6px 10px; border-color: var(--line); border-radius: 4px; }
    .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(183, 107, 117, .22); }

    .hero {
      position: relative;
      min-height: 510px;
      display: flex;
      align-items: center;
      overflow: hidden;
      color: #fff;
      background: #2d2327;
      isolation: isolate;
    }
    .hero::before {
      position: absolute;
      z-index: -2;
      inset: 0;
      background: url("https://images.unsplash.com/photo-1497366754035-f200968a6e72?auto=format&fit=crop&w=2000&q=85") center 48% / cover no-repeat;
      content: "";
    }
    .hero::after {
      position: absolute;
      z-index: -1;
      inset: 0;
      background: linear-gradient(90deg, rgba(35, 25, 29, .9) 0%, rgba(44, 29, 36, .79) 49%, rgba(44, 29, 36, .31) 100%);
      content: "";
    }
    .hero-content { padding-top: 58px; padding-bottom: 75px; }
    .hero .eyebrow { color: #efc3c6; }
    .hero h1 {
      max-width: 760px;
      margin: 0 0 18px;
      font-size: 48px;
      font-weight: 800;
      line-height: 1.2;
      overflow-wrap: anywhere;
    }
    .hero-copy { max-width: 730px; margin: 0 0 25px; color: #f1e9e8; font-size: 16px; line-height: 1.85; }
    .hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
    .btn-plum, .btn-outline-light-custom, .btn-rose {
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 10px 18px;
      border: 1px solid transparent;
      border-radius: 4px;
      font-size: 14px;
      font-weight: 700;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
    }
    .btn-plum { color: #fff; background: var(--plum); border-color: var(--plum); }
    .btn-plum:hover { color: #fff; background: var(--plum-dark); border-color: var(--plum-dark); transform: translateY(-1px); }
    .hero .btn-plum { color: var(--plum-dark); background: #f2dfe0; border-color: #f2dfe0; }
    .hero .btn-plum:hover { background: #fff; border-color: #fff; }
    .btn-outline-light-custom { color: #fff; background: transparent; border-color: rgba(255,255,255,.6); }
    .btn-outline-light-custom:hover { color: var(--plum-dark); background: #fff; border-color: #fff; }
    .btn-rose { color: #fff; background: var(--rose); border-color: var(--rose); }
    .btn-rose:hover { color: #fff; background: #9f5963; border-color: #9f5963; transform: translateY(-1px); }
    .hero-footnote { margin: 18px 0 0; color: #e4d6d8; font-size: 12px; }
    .hero-edge {
      position: absolute;
      right: max(calc((100vw - var(--container)) / 2), 24px);
      bottom: 23px;
      color: rgba(255,255,255,.72);
      font-size: 11px;
    }

    .metrics-band { position: relative; z-index: 1; margin-top: -1px; background: var(--surface); border-bottom: 1px solid var(--line); }
    .metric {
      min-height: 105px;
      display: flex;
      align-items: center;
      gap: 15px;
      padding: 19px 23px;
      border-right: 1px solid var(--line);
    }
    .metric:first-child { border-left: 1px solid var(--line); }
    .metric-icon { color: var(--rose); font-size: 20px; }
    .metric strong { display: block; color: var(--plum); font-size: 23px; line-height: 1.2; }
    .metric span { display: block; color: var(--muted); font-size: 12px; }

    .search-panel { padding: 42px 0 48px; background: var(--surface-deep); border-bottom: 1px solid var(--line); }
    .search-panel-top { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 18px; }
    .search-panel h2 { margin: 0; font-size: 25px; font-weight: 750; }
    .search-panel p { margin: 6px 0 0; color: var(--muted); }
    .search-form { display: flex; gap: 9px; }
    .search-form .form-control {
      min-height: 48px;
      padding: 10px 15px;
      color: var(--ink);
      background: var(--surface);
      border: 1px solid #cfc4c0;
      border-radius: 4px;
    }
    .search-form .form-control:focus { border-color: var(--rose); box-shadow: 0 0 0 3px rgba(183,107,117,.17); }
    .search-form .btn { min-width: 126px; }
    .search-meta { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
    .search-tags, .topic-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 4px 10px;
      color: #5e4b53;
      background: #f3e9e9;
      border: 1px solid #e5d2d5;
      border-radius: 3px;
      font-size: 12px;
      line-height: 1.35;
      transition: color .18s ease, background .18s ease;
    }
    a.tag:hover, button.tag:hover { color: #fff; background: var(--plum); }
    .tag-button { cursor: pointer; }
    .clear-search { min-height: 38px; padding: 6px 11px; color: var(--muted); background: transparent; border: 1px solid transparent; border-radius: 4px; }
    .clear-search:hover { color: var(--plum); border-color: var(--line); }

    .matrix-layout { display: grid; grid-template-columns: 1.04fr .96fr; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .matrix-lead { padding: 28px 30px 28px 0; }
    .matrix-lead h3 { margin: 0 0 12px; font-size: 23px; font-weight: 750; }
    .matrix-lead p { margin: 0; color: var(--muted); }
    .matrix-list { display: grid; grid-template-columns: 1fr 1fr; border-left: 1px solid var(--line); }
    .matrix-item { min-height: 116px; padding: 20px 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .matrix-item:nth-last-child(-n+2) { border-bottom: 0; }
    .matrix-item i { display: inline-block; margin-bottom: 8px; color: var(--rose); font-size: 18px; }
    .matrix-item h3 { margin: 0 0 5px; font-size: 15px; font-weight: 750; }
    .matrix-item p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.65; }

    .compare-table { width: 100%; border-collapse: collapse; }
    .compare-table th, .compare-table td { padding: 16px 18px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
    .compare-table th { color: var(--plum); background: #f0e9e7; font-size: 13px; font-weight: 750; }
    .compare-table td { color: #514a47; }
    .compare-table tr:last-child td { border-bottom: 0; }
    .compare-label { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; }
    .compare-label i { color: var(--rose); }
    .compare-note { margin: 15px 0 0; color: var(--muted); font-size: 12px; }

    .scene-grid { display: grid; grid-template-columns: 1.25fr .85fr .9fr; grid-template-rows: repeat(2, minmax(150px, auto)); gap: 12px; }
    .scene-item {
      position: relative;
      min-height: 150px;
      display: flex;
      align-items: end;
      padding: 22px;
      overflow: hidden;
      color: #fff;
      background: var(--plum);
      border-radius: 4px;
      isolation: isolate;
    }
    .scene-item::before { position: absolute; z-index: -1; inset: 0; background: linear-gradient(0deg, rgba(34,23,28,.82), rgba(34,23,28,.12)); content: ""; }
    .scene-item::after { position: absolute; z-index: -2; inset: 0; background: var(--scene-bg, #805966); content: ""; }
    .scene-item--feature { grid-row: span 2; min-height: 312px; background: #3b282f; }
    .scene-item--feature::after { background: url("https://images.unsplash.com/photo-1516979187457-637abb4f9353?auto=format&fit=crop&w=1000&q=80") center / cover no-repeat; }
    .scene-item--index::after { background: url("https://images.unsplash.com/photo-1455390582262-044c해3d?auto=format&fit=crop&w=800&q=80") center / cover no-repeat, #805966; }
    .scene-item--night::after { background: #6c5358; }
    .scene-item--update::after { background: #596b61; }
    .scene-item h3 { margin: 0 0 6px; font-size: 19px; font-weight: 750; }
    .scene-item p { max-width: 420px; margin: 0; color: rgba(255,255,255,.85); font-size: 12px; }
    .scene-item .scene-arrow { position: absolute; top: 18px; right: 18px; font-size: 19px; }

    .milestone-list { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.26); }
    .milestone { position: relative; padding: 22px 20px 4px 0; }
    .milestone::before { position: absolute; top: -5px; left: 0; width: 9px; height: 9px; background: #e5a3a6; border: 2px solid var(--plum-dark); border-radius: 50%; content: ""; }
    .milestone span { display: block; margin-bottom: 9px; color: #efc3c6; font-size: 11px; font-weight: 800; }
    .milestone h3 { margin: 0 0 6px; color: #fff; font-size: 15px; font-weight: 700; }
    .milestone p { margin: 0; color: #d0c0c4; font-size: 12px; line-height: 1.65; }

    .topic-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .topic-copy h2 { margin: 0 0 12px; font-size: 28px; font-weight: 750; }
    .topic-copy p { margin: 0; color: var(--muted); }
    .topic-group { padding: 16px 0; border-top: 1px solid var(--line); }
    .topic-group:last-child { border-bottom: 1px solid var(--line); }
    .topic-group h3 { margin: 0 0 10px; color: var(--plum); font-size: 13px; font-weight: 800; }

    .news-layout { display: grid; grid-template-columns: 1.12fr .88fr; gap: 36px; }
    .news-feature { display: grid; grid-template-columns: 42% 1fr; min-height: 260px; background: #eee7e3; }
    .news-feature img { width: 100%; height: 100%; min-height: 260px; object-fit: cover; }
    .news-feature-body { padding: 24px; }
    .news-meta { display: flex; flex-wrap: wrap; gap: 8px 12px; margin-bottom: 10px; color: var(--muted); font-size: 11px; }
    .news-feature h3 { margin: 0 0 10px; font-size: 20px; line-height: 1.45; font-weight: 750; }
    .news-feature p { margin: 0 0 15px; color: var(--muted); font-size: 13px; }
    .text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--plum); font-size: 13px; font-weight: 750; }
    .text-link:hover { color: var(--rose); }
    .news-list { border-top: 1px solid var(--line); }
    .news-row { display: grid; grid-template-columns: 68px 1fr; gap: 14px; padding: 17px 0; border-bottom: 1px solid var(--line); }
    .news-date { color: var(--rose); font-size: 11px; font-weight: 800; }
    .news-row h3 { margin: 0 0 5px; font-size: 14px; font-weight: 750; }
    .news-row p { margin: 0; color: var(--muted); font-size: 12px; }

    .trend-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 48px; align-items: center; }
    .trend-copy h2 { margin: 0 0 11px; font-size: 27px; font-weight: 750; }
    .trend-copy p { margin: 0; color: var(--muted); }
    .trend-chart { padding: 22px 25px; background: var(--surface); border: 1px solid var(--line); border-radius: 4px; }
    .trend-top { display: flex; justify-content: space-between; gap: 14px; margin-bottom: 16px; }
    .trend-top strong { font-size: 13px; }
    .trend-top span { color: var(--muted); font-size: 11px; }
    .trend-bars { display: grid; grid-template-columns: repeat(6, 1fr); align-items: end; gap: 12px; height: 104px; border-bottom: 1px solid var(--line); }
    .trend-bar { position: relative; min-height: 15px; background: #c18b91; border-top: 3px solid var(--plum); }
    .trend-bar:nth-child(2n) { background: #d9b9ba; }
    .trend-labels { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; padding-top: 9px; color: var(--muted); font-size: 10px; text-align: center; }
    .trend-legend { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
    .trend-legend .tag { background: #f8f1ef; }

    .trust-grid { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .trust-item { min-height: 156px; padding: 23px 18px; border-right: 1px solid var(--line); }
    .trust-item:first-child { border-left: 1px solid var(--line); }
    .trust-item i { display: block; margin-bottom: 13px; color: var(--sage); font-size: 22px; }
    .trust-item h3 { margin: 0 0 7px; font-size: 14px; font-weight: 750; }
    .trust-item p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }

    .quick-answers { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 32px; }
    .quick-answer { display: grid; grid-template-columns: 33px 1fr; gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--line); }
    .quick-answer .answer-no { color: var(--rose); font-size: 12px; font-weight: 800; }
    .quick-answer h3 { margin: 0 0 5px; font-size: 14px; font-weight: 750; }
    .quick-answer p { margin: 0; color: var(--muted); font-size: 12px; }

    .faq-list { border-top: 1px solid var(--line); }
    .accordion-item { background: transparent; border: 0; border-bottom: 1px solid var(--line); }
    .accordion-button { min-height: 58px; padding: 15px 4px; color: var(--ink); background: transparent; font-size: 14px; font-weight: 750; box-shadow: none; }
    .accordion-button:not(.collapsed) { color: var(--plum); background: transparent; box-shadow: none; }
    .accordion-button::after { filter: sepia(.4) saturate(1.7); }
    .accordion-body { padding: 0 30px 18px 4px; color: var(--muted); font-size: 13px; line-height: 1.8; }
    .accordion-button:focus { box-shadow: none; outline: 3px solid rgba(183,107,117,.28); outline-offset: 2px; }

    .subscribe-band { padding: 56px 0; color: #fff; background: #5a3547; }
    .subscribe-layout { display: grid; grid-template-columns: 1fr .9fr; gap: 50px; align-items: center; }
    .subscribe-copy .eyebrow { color: #f0c4c7; }
    .subscribe-copy h2 { margin: 0 0 10px; font-size: 27px; font-weight: 750; }
    .subscribe-copy p { max-width: 540px; margin: 0; color: #e3d5d8; }
    .subscribe-form { padding: 22px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.2); border-radius: 4px; }
    .subscribe-form .form-control { min-height: 45px; color: #fff; background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.35); border-radius: 4px; }
    .subscribe-form .form-control::placeholder { color: #dfd0d3; }
    .subscribe-form .form-control:focus { border-color: #f2c4c8; box-shadow: 0 0 0 3px rgba(242,196,200,.2); }
    .form-check-label, .form-hint { color: #e3d5d8; font-size: 11px; }
    .form-check-input { border-color: #d9b7bd; }
    .form-check-input:checked { background-color: var(--rose); border-color: var(--rose); }
    .form-status { min-height: 22px; margin: 9px 0 0; color: #f2dfe0; font-size: 12px; }
    .is-invalid { border-color: #f09aa2 !important; }
    .is-valid { border-color: #a9d1b1 !important; }

    .disclaimer { padding: 28px 0 32px; background: #e8e2df; border-top: 1px solid #d8ceca; }
    .disclaimer-inner { display: grid; grid-template-columns: 42px 1fr; gap: 14px; }
    .disclaimer-inner i { color: var(--warning); font-size: 22px; }
    .disclaimer h2 { margin: 0 0 5px; font-size: 14px; font-weight: 800; }
    .disclaimer p { margin: 0; color: #625a56; font-size: 12px; }

    .site-footer { padding: 42px 0 20px; color: #e9e1e1; background: #282126; }
    .footer-main { display: grid; grid-template-columns: 1.25fr .75fr .9fr; gap: 44px; padding-bottom: 30px; }
    .footer-brand { color: #fff; }
    .footer-brand .brand-mark { color: var(--plum-dark); background: #e7c4c7; }
    .footer-copy { max-width: 390px; margin: 13px 0 0; color: #c8bdc0; font-size: 12px; }
    .footer-col h2 { margin: 0 0 12px; color: #fff; font-size: 13px; font-weight: 750; }
    .footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 15px; }
    .footer-links a, .footer-links span { color: #c8bdc0; font-size: 12px; }
    .footer-links a:hover { color: #f0c4c7; }
    .footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px 20px; padding-top: 17px; border-top: 1px solid rgba(255,255,255,.14); color: #aa9fa2; font-size: 11px; }

    .toast-message {
      position: fixed;
      z-index: 1200;
      right: 20px;
      bottom: 20px;
      max-width: min(360px, calc(100vw - 40px));
      padding: 12px 16px;
      color: #fff;
      background: #35272e;
      border-left: 3px solid var(--rose);
      border-radius: 4px;
      box-shadow: var(--shadow);
      opacity: 0;
      pointer-events: none;
      transform: translateY(8px);
      transition: opacity .2s ease, transform .2s ease;
    }
    .toast-message.show { opacity: 1; transform: translateY(0); }

    @media (max-width: 991.98px) {
      .brand-note { display: none; }
      .nav-tools { padding: 10px 0 14px; }
      .nav-links { align-items: stretch; gap: 0; }
      .nav-links .nav-link { padding: 11px 12px; }
      .hero { min-height: 475px; }
      .hero h1 { max-width: 700px; font-size: 42px; }
      .metric { padding-right: 14px; padding-left: 14px; }
      .scene-grid { grid-template-columns: 1fr 1fr; }
      .scene-item--feature { grid-row: span 2; }
      .trust-grid { grid-template-columns: repeat(3, 1fr); }
      .trust-item:nth-child(4) { border-left: 1px solid var(--line); }
      .news-layout { gap: 24px; }
    }
    @media (max-width: 767.98px) {
      html { scroll-padding-top: 72px; }
      .brand-row { min-height: 58px; }
      .brand { font-size: 15px; }
      .nav-row .navbar { min-height: 44px; }
      .hero { min-height: 470px; }
      .hero::before { background-position: 58% center; }
      .hero::after { background: linear-gradient(90deg, rgba(35,25,29,.91), rgba(44,29,36,.73)); }
      .hero-content { padding-top: 46px; padding-bottom: 70px; }
      .hero h1 { max-width: 590px; font-size: 36px; }
      .hero-copy { font-size: 14px; }
      .hero-edge { right: 18px; bottom: 14px; }
      .section-band { padding: 50px 0; }
      .section-heading { margin-bottom: 23px; }
      .section-heading h2 { font-size: 25px; }
      .metrics-band .row { display: grid; grid-template-columns: repeat(2, 1fr); }
      .metric { min-height: 82px; border-bottom: 1px solid var(--line); }
      .metric:nth-child(odd) { border-left: 1px solid var(--line); }
      .metric:nth-child(even) { border-right: 1px solid var(--line); }
      .metric strong { font-size: 20px; }
      .search-panel-top { display: block; }
      .search-panel h2 { font-size: 22px; }
      .search-panel-top .eyebrow { margin-bottom: 7px; }
      .search-form { margin-top: 18px; }
      .matrix-layout, .topic-layout, .news-layout, .trend-layout, .subscribe-layout { grid-template-columns: 1fr; }
      .matrix-lead { padding: 0 0 21px; }
      .matrix-list { border-left: 0; border-top: 1px solid var(--line); }
      .matrix-item:nth-child(odd) { border-left: 1px solid var(--line); }
      .matrix-item { min-height: 124px; }
      .compare-table th, .compare-table td { padding: 12px 10px; font-size: 12px; }
      .scene-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
      .scene-item--feature { grid-column: span 2; grid-row: auto; min-height: 230px; }
      .scene-item { min-height: 150px; padding: 17px; }
      .milestone-list { grid-template-columns: repeat(2, 1fr); row-gap: 25px; }
      .milestone:nth-child(3) { border-left: 0; }
      .topic-layout { gap: 22px; }
      .news-feature { grid-template-columns: 1fr; }
      .news-feature img { height: 220px; min-height: 0; }
      .trend-layout { gap: 23px; }
      .trust-grid { grid-template-columns: repeat(2, 1fr); }
      .trust-item { min-height: 145px; }
      .trust-item:nth-child(odd) { border-left: 1px solid var(--line); }
      .trust-item:nth-child(3) { border-left: 0; }
      .quick-answers { grid-template-columns: 1fr; }
      .subscribe-layout { gap: 24px; }
      .footer-main { grid-template-columns: 1fr 1fr; gap: 28px; }
      .footer-main > :first-child { grid-column: 1 / -1; }
    }
    @media (max-width: 519.98px) {
      .container { padding-right: 18px; padding-left: 18px; }
      .brand { max-width: calc(100vw - 115px); font-size: 14px; }
      .brand-mark { width: 29px; height: 29px; flex-basis: 29px; }
      .hero { min-height: 500px; }
      .hero h1 { font-size: 31px; }
      .hero-copy { font-size: 13px; }
      .hero-actions { align-items: stretch; flex-direction: column; max-width: 260px; }
      .hero-actions .btn { width: 100%; }
      .metrics-band .row { grid-template-columns: 1fr 1fr; }
      .metric { gap: 9px; padding: 14px 9px; }
      .metric-icon { font-size: 17px; }
      .metric strong { font-size: 18px; }
      .metric span { font-size: 10px; }
      .search-form { flex-direction: column; }
      .search-form .btn { width: 100%; }
      .search-meta { align-items: flex-start; }
      .matrix-list { grid-template-columns: 1fr; }
      .matrix-item, .matrix-item:nth-child(odd) { min-height: 0; padding: 16px; border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
      .matrix-item:last-child { border-bottom: 0; }
      .compare-table thead { display: none; }
      .compare-table, .compare-table tbody, .compare-table tr, .compare-table td { display: block; width: 100%; }
      .compare-table tr { padding: 11px 0; border-bottom: 1px solid var(--line); }
      .compare-table td { display: grid; grid-template-columns: 95px 1fr; gap: 8px; padding: 5px 8px; border: 0; }
      .compare-table td::before { color: var(--muted); font-size: 11px; font-weight: 700; content: attr(data-label); }
      .scene-grid { grid-template-columns: 1fr; }
      .scene-item--feature { grid-column: auto; min-height: 205px; }
      .scene-item { min-height: 135px; }
      .milestone-list { grid-template-columns: 1fr 1fr; }
      .milestone { padding-right: 12px; }
      .trend-chart { padding: 17px 13px; }
      .trend-bars, .trend-labels { gap: 7px; }
      .trust-grid { grid-template-columns: 1fr 1fr; }
      .trust-item { padding: 18px 12px; }
      .subscribe-form { padding: 17px; }
      .footer-main { grid-template-columns: 1fr; }
      .footer-main > :first-child { grid-column: auto; }
      .footer-links { grid-template-columns: 1fr 1fr; }
      .footer-bottom { display: block; }
      .footer-bottom span { display: block; margin-top: 5px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
    }

/* roulang page: category1 */
:root {
 --ink:#282522;--muted:#746d68;--paper:#f2efed;--surface:#fbf9f7;--surface-deep:#e9e3e0;
 --line:#d9d1cd;--plum:#562d42;--plum-dark:#3d2030;--rose:#b76b75;--rose-pale:#f0dfe0;
 --sage:#65766d;--sage-pale:#e4e9e4;--warning:#855f44;--radius:6px;
 --shadow:0 8px 24px rgba(42,31,34,.07);--container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}a:hover{color:var(--plum)}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid rgba(183,107,117,.55)!important;outline-offset:3px}
.container{max-width:var(--container)}
.eyebrow{display:flex;align-items:center;gap:10px;margin:0 0 12px;color:var(--plum);font-size:11px;font-weight:800}
.eyebrow:before{width:22px;height:2px;background:var(--rose);content:""}
.site-header{position:sticky;z-index:1030;top:0;background:rgba(251,249,247,.98);border-bottom:1px solid var(--line);box-shadow:0 3px 14px rgba(42,31,34,.04)}
.brand-row{min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0;color:var(--plum-dark);font-size:17px;font-weight:800;line-height:1.25}
.brand:hover{color:var(--plum)}
.brand-mark{width:32px;height:32px;display:grid;flex:0 0 32px;place-items:center;color:#fff;background:var(--plum);border-radius:4px;font-size:15px}
.brand-note{color:var(--muted);font-size:12px;white-space:nowrap}
.nav-row{min-height:48px;border-top:1px solid #ebe5e2}
.nav-row .navbar{min-height:48px;padding:0}
.nav-links{display:flex;align-items:center;gap:7px}
.nav-links .nav-link{position:relative;padding:12px 14px;color:#514a47;font-size:13px;font-weight:650;transition:color .18s ease,background .18s ease}
.nav-links .nav-link:hover,.nav-links .nav-link.active{color:var(--plum);background:#f3e9e9}
.nav-links .nav-link.active:after{position:absolute;right:14px;bottom:0;left:14px;height:2px;background:var(--rose);content:""}
.nav-tools{display:flex;align-items:center;gap:10px}
.trend-link{color:var(--plum);font-size:13px;font-weight:700}
.icon-button{width:40px;height:40px;display:inline-grid;place-items:center;color:var(--plum);background:transparent;border:1px solid var(--line);border-radius:4px;transition:background .18s,border-color .18s}
.icon-button:hover{background:var(--rose-pale);border-color:var(--rose)}
.navbar-toggler{padding:6px 10px;border-color:var(--line);border-radius:4px}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(183,107,117,.22)}
.page-intro{padding:54px 0 40px;background:var(--surface);border-bottom:1px solid var(--line)}
.intro-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(220px,4fr);gap:40px;align-items:end}
.page-intro h1{max-width:800px;margin:0 0 15px;color:var(--plum-dark);font-size:clamp(32px,4vw,45px);font-weight:800;line-height:1.2;overflow-wrap:anywhere}
.intro-copy{max-width:760px;margin:0;color:var(--muted);font-size:15px;line-height:1.85}
.intro-side{padding:18px 0 5px 22px;border-left:2px solid var(--rose)}
.intro-side strong{display:block;margin-bottom:5px;color:var(--plum);font-size:13px}
.intro-side span{color:var(--muted);font-size:13px}
.section-band{padding:48px 0;border-top:1px solid rgba(86,45,66,.1)}
.section-band--light{background:var(--surface)}
.section-band--deep{color:#f8f2f1;background:var(--plum-dark)}
.section-heading{max-width:740px;margin-bottom:26px}
.section-heading h2{margin:0 0 8px;font-size:27px;font-weight:780;line-height:1.3}
.section-heading p{margin:0;color:var(--muted);line-height:1.8}
.section-band--deep .eyebrow{color:#efc3c6}
.section-band--deep .section-heading p{color:#d0c0c4}
.filter-panel{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.search-row{display:grid;grid-template-columns:minmax(0,1fr) 170px 150px auto;gap:10px}
.form-control,.form-select{min-height:46px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:4px}
.form-control:focus,.form-select:focus{border-color:var(--rose);box-shadow:0 0 0 3px rgba(183,107,117,.16)}
.form-control::placeholder{color:#918984}
.btn-plum,.btn-outline-plum,.btn-rose{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 16px;border:1px solid transparent;border-radius:4px;font-size:14px;font-weight:700;transition:transform .18s,background .18s,border-color .18s}
.btn-plum{color:#fff;background:var(--plum);border-color:var(--plum)}
.btn-plum:hover{color:#fff;background:var(--plum-dark);border-color:var(--plum-dark);transform:translateY(-1px)}
.btn-outline-plum{color:var(--plum);background:transparent;border-color:var(--line)}
.btn-outline-plum:hover{color:var(--plum-dark);background:var(--rose-pale);border-color:var(--rose)}
.btn-rose{color:#fff;background:var(--rose);border-color:var(--rose)}
.btn-rose:hover{color:#fff;background:#9f5963;border-color:#9f5963;transform:translateY(-1px)}
.btn-plum:disabled,.btn-rose:disabled{opacity:.55;cursor:not-allowed;transform:none}
.filter-tags{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px}
.filter-label{margin-right:4px;color:var(--muted);font-size:12px;font-weight:700}
.topic-chip,.badge-soft{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;color:var(--plum);background:#f4e9e9;border:1px solid #ead7d8;border-radius:4px;font-size:12px;font-weight:650}
.topic-chip{cursor:pointer;transition:background .16s,border-color .16s}
.topic-chip:hover,.topic-chip.is-active{background:var(--rose-pale);border-color:var(--rose)}
.list-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(245px,4fr);gap:34px;align-items:start}
.list-meta{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--line);color:var(--muted);font-size:12px}
.article-list{display:grid;gap:0}
.article-item{display:grid;grid-template-columns:90px minmax(0,1fr);gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.article-index{width:82px;height:82px;display:grid;place-items:center;color:var(--plum);background:var(--surface-deep);border:1px solid var(--line);font-size:24px;font-weight:800}
.article-index span{font-size:10px;font-weight:700}
.article-body h3{margin:0 0 6px;font-size:18px;font-weight:760;line-height:1.4}
.article-body h3 a:hover{color:var(--rose)}
.article-body p{margin:0 0 9px;color:var(--muted);font-size:13px;line-height:1.75}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;color:var(--muted);font-size:11px}
.article-meta .badge-soft{padding:2px 7px;font-size:10px}
.more-row{padding-top:20px}
.side-panel{padding:20px 0 0 22px;border-left:1px solid var(--line)}
.side-panel h3{margin:0 0 15px;font-size:17px;font-weight:750}
.side-topic{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:13px}
.side-topic span:last-child{color:var(--muted);font-size:11px;white-space:nowrap}
.side-note{margin-top:22px;padding:15px;background:var(--sage-pale);border-left:3px solid var(--sage);color:#45544b;font-size:12px}
.topic-groups{display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px}
.topic-group{padding-top:14px;border-top:2px solid var(--rose)}
.topic-group h3{margin:0 0 12px;font-size:16px;font-weight:750}
.topic-group p{margin:0 0 12px;color:var(--muted);font-size:13px}
.topic-group .filter-tags{margin:0}
.trend-line{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2)}
.trend-item{position:relative;min-height:108px;padding:20px 18px;border-right:1px solid rgba(255,255,255,.17)}
.trend-item:last-child{border-right:0}
.trend-time{display:block;margin-bottom:8px;color:#efc3c6;font-size:11px;font-weight:750}
.trend-item strong{display:block;color:#fff;font-size:15px}
.trend-item span:last-child{display:block;margin-top:5px;color:#d0c0c4;font-size:12px}
.notes-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.note-item{padding:20px 18px;border-right:1px solid var(--line)}
.note-item:last-child{border-right:0}
.note-item i{display:block;margin-bottom:10px;color:var(--plum);font-size:19px}
.note-item h3{margin:0 0 5px;font-size:14px;font-weight:750}
.note-item p{margin:0;color:var(--muted);font-size:12px;line-height:1.7}
.quick-answer{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quick-answer article{padding-top:14px;border-top:2px solid var(--line)}
.quick-answer h3{margin:0 0 7px;font-size:14px;font-weight:750}
.quick-answer p{margin:0;color:var(--muted);font-size:12px}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:var(--line);--bs-accordion-border-radius:4px;--bs-accordion-btn-color:var(--ink);--bs-accordion-active-color:var(--plum);--bs-accordion-active-bg:#f4e9e9;--bs-accordion-btn-focus-box-shadow:0 0 0 3px rgba(183,107,117,.16)}
.accordion-button{min-height:52px;font-weight:700}
.accordion-button:not(.collapsed){box-shadow:none}
.accordion-body{color:var(--muted);font-size:13px}
.bottom-action{display:flex;justify-content:space-between;align-items:center;gap:22px;padding:23px 0;border-top:1px solid var(--line)}
.bottom-action h2{margin:0 0 5px;font-size:20px;font-weight:780}
.bottom-action p{margin:0;color:var(--muted);font-size:13px}
.action-buttons{display:flex;flex-wrap:wrap;gap:10px}
.site-footer{padding:42px 0 20px;color:#eee3e5;background:#30232a}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:48px;padding-bottom:30px}
.footer-brand{color:#fff}
.footer-brand:hover{color:#f2dfe0}
.footer-brand .brand-mark{color:var(--plum-dark);background:#f2dfe0}
.footer-copy{max-width:390px;margin:15px 0 0;color:#c9b9bd;font-size:12px;line-height:1.8}
.footer-col h2{margin:0 0 12px;color:#fff;font-size:13px;font-weight:750}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px}
.footer-links a,.footer-links span{color:#d3c4c7;font-size:12px}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{display:flex;justify-content:space-between;gap:15px;padding-top:16px;border-top:1px solid rgba(255,255,255,.16);color:#bcaeb1;font-size:11px}
@media(max-width:991.98px){
 .nav-tools{padding:8px 0 12px}.nav-links .nav-link{padding:10px 12px}
 .search-row{grid-template-columns:minmax(0,1fr) 1fr 1fr}.search-row .btn-plum{grid-column:1/-1}
}
@media(max-width:767.98px){
 html{scroll-padding-top:100px}.brand-row{min-height:58px}.brand{font-size:15px}.brand-note{display:none}
 .page-intro{padding:38px 0 30px}.intro-grid{grid-template-columns:1fr;gap:20px}.intro-side{padding:12px 0 0 15px}
 .page-intro h1{font-size:32px}.section-band{padding:38px 0}.section-heading h2{font-size:24px}
 .list-layout{grid-template-columns:1fr;gap:30px}.side-panel{padding:20px 0 0;border-top:1px solid var(--line);border-left:0}
 .topic-groups{grid-template-columns:1fr;gap:22px}.trend-line{grid-template-columns:1fr 1fr}
 .trend-item:nth-child(2){border-right:0}.trend-item:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.17)}
 .notes-grid{grid-template-columns:1fr 1fr}.note-item:nth-child(2){border-right:0}.note-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
 .quick-answer{grid-template-columns:1fr;gap:18px}.bottom-action{align-items:flex-start;flex-direction:column}
 .footer-main{grid-template-columns:1fr 1fr;gap:28px}.footer-main>div:first-child{grid-column:1/-1}
}
@media(max-width:520px){
 .search-row{grid-template-columns:1fr}.search-row .btn-plum{grid-column:auto}
 .article-item{grid-template-columns:58px minmax(0,1fr);gap:12px}
 .article-index{width:56px;height:64px;font-size:19px}.article-body h3{font-size:16px}
 .list-meta{align-items:flex-start;flex-direction:column;gap:3px}
 .trend-item{padding:15px 12px}.notes-grid{grid-template-columns:1fr}
 .note-item{border-right:0;border-bottom:1px solid var(--line)}.note-item:last-child{border-bottom:0}
 .footer-main{grid-template-columns:1fr}.footer-main>div:first-child{grid-column:auto}
 .footer-bottom{flex-direction:column}
}